Copper65

Copper-65 is a stable isotope of copper. It is one of the two naturally occurring isotopes of copper, the other being copper-63. Copper-65 has 29 protons and 36 neutrons in its nucleus, giving it an atomic mass of approximately 64.928 atomic mass units. Its natural abundance is about 30.83%, with copper-63 making up the remaining 69.17%. This isotopic ratio is important in various fields, including geology, archaeology, and environmental science, where it can be used for tracing origins and dating materials. Due to its stability, copper-65 does not undergo radioactive decay. It is produced in stars through the s-process and r-process nucleosynthesis. In laboratory settings, copper-65 can be enriched for use in specialized applications, although it is less common than enriched copper-63.